Message received. Yeah, I was still debating just given what I may be taking on, especially with supply chain and everything else going on lol.Stop right there.
Although one anecdotal example is not a trend... Consider that I, just a few weeks ago, went through the teardown and inspection of my 146,000 mile bone stock, lady's daily driver LSA.
Yes, it's a single example but in combination with the reading I've done and the pics seen of many other LSAs, I have taken the liberty to draw some conclusions that I think are pretty solid.
My number one take away that would apply to you: You need main bearings. OR at the minimum, you really should take a LOOK at them.
in my build thread you will find references to what I dubbed "Freebuild" and the results found. The engine started making a VERY SUBTLE noise that I could only hear in neutral, at 2800~3000 rpm. I was convinced that the noise was piston slap; teardown proved me wrong, it was the main bearings. Not spun, not fatally damaged yet, but time to freshen them up before they got worse.
My number two comment would be: No sane person puts 140K mile roller lifters back in.
It is a 'known fact' (using Cliff Clavin's voice) that when pushed to their HP limits, a common first-failure area of the LSA is the mains. Apparently due to both block flex AND crank whip.
It is my supposition that even a mild or stock LSA given enough miles will eventually have main bearing issues (if a lifter doesn't wipe out first).
I found it interesting to observe in my LSA that the center crank bearing (including the thrust faces) was in perfect shape, while the damage to the other mains was perfectly progressive from the center toward each end of the crank (numbers 1 & 5 were much worse than 2 & 4).
To me, this suggested crank flex. The crank itself was undamaged.
It should also be possible to 're-shell' the mains without pulling the block out of the car, but you'd need to pull the trans,
Just points to ponder.